Wang Hai has been doing homework since this morning(对doing h
翻译句子:he has been doing nothing else ever since.
Jim has been like this ever since this morning.
He has been doing
has been doing 的用法
has been doing sth+介词
has been doing的问题,
一道英语时态问题I'm rather tired;I __ since this morning.A was doing
i has been doing 还是i have been doing
has been doing have been done区别
They have been doing their homework
has been doing还是 has done
the are doing their homework.对doing their homework提问